Apple didn't revolutionize power supplies; new transistors did (2012)

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Apple IIpower supplyswitching power supplyRod HoltElliot JosephsonAstecIBM PCATX power supply80 PLUS certification

Author: geerlingguy

Date: 6/11/2026

Article Summary:
A detailed analysis of the power supply in the Apple II computer, its design, and its impact on the industry.